Is there a way to view previous in-game chat messages? A way to page up/down through the history like in a terminal/console? Sometimes I don't see the messages and they disappear too quickly for me to read them. The ability to scroll back would be nice.

Of course! There is a pulldown Quake-like log you can trigger with SHIFT-ESC (documented in the SYSTEM KEYS page if you press F1) which shows all game message output as well as the complete chatlog. You can scroll it, too.

The greatest pleasure in life is to do what people say you cannot do.Uhm... Honey, there's a head in the toilet!